Single forever????

I feel like I’m going to be single forever. I will be 20 years old soon and I have never had a boyfriend and have yet to loose my virginity. I know I’m still young and have “my whole life ahead of me” but I feel like I have missed out on an essentially important time in my life that I could’ve used to experiment and date around. I’m in college now and am afraid I won’t have time soon to be in relationships and experience my firsts because I’ll be busy with adult world things. I just want a relationship and I feel like my window of opportunity is closing.